127e34995SRabin Vincent /* 227e34995SRabin Vincent * Copyright (C) ST-Ericsson SA 2010 327e34995SRabin Vincent * 427e34995SRabin Vincent * License Terms: GNU General Public License, version 2 527e34995SRabin Vincent * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson 627e34995SRabin Vincent */ 727e34995SRabin Vincent 827e34995SRabin Vincent #ifndef __LINUX_MFD_STMPE_H 927e34995SRabin Vincent #define __LINUX_MFD_STMPE_H 1027e34995SRabin Vincent 11313162d0SPaul Gortmaker #include <linux/mutex.h> 12313162d0SPaul Gortmaker 13313162d0SPaul Gortmaker struct device; 149c9e3214SLinus Walleij struct regulator; 1527e34995SRabin Vincent 1627e34995SRabin Vincent enum stmpe_block { 1727e34995SRabin Vincent STMPE_BLOCK_GPIO = 1 << 0, 1827e34995SRabin Vincent STMPE_BLOCK_KEYPAD = 1 << 1, 1927e34995SRabin Vincent STMPE_BLOCK_TOUCHSCREEN = 1 << 2, 2027e34995SRabin Vincent STMPE_BLOCK_ADC = 1 << 3, 2127e34995SRabin Vincent STMPE_BLOCK_PWM = 1 << 4, 2227e34995SRabin Vincent STMPE_BLOCK_ROTATOR = 1 << 5, 2327e34995SRabin Vincent }; 2427e34995SRabin Vincent 2527e34995SRabin Vincent enum stmpe_partnum { 261cda2394SViresh Kumar STMPE610, 277f7f4ea1SViresh Kumar STMPE801, 2827e34995SRabin Vincent STMPE811, 29*6bb9f0d9SPatrice Chotard STMPE1600, 3027e34995SRabin Vincent STMPE1601, 31230f13a5SJean-Nicolas Graux STMPE1801, 3227e34995SRabin Vincent STMPE2401, 3327e34995SRabin Vincent STMPE2403, 34e31f9b82SChris Blair STMPE_NBR_PARTS 3527e34995SRabin Vincent }; 3627e34995SRabin Vincent 3727e34995SRabin Vincent /* 3827e34995SRabin Vincent * For registers whose locations differ on variants, the correct address is 3927e34995SRabin Vincent * obtained by indexing stmpe->regs with one of the following. 4027e34995SRabin Vincent */ 4127e34995SRabin Vincent enum { 4227e34995SRabin Vincent STMPE_IDX_CHIP_ID, 430f4be8cfSPatrice Chotard STMPE_IDX_SYS_CTRL, 440f4be8cfSPatrice Chotard STMPE_IDX_SYS_CTRL2, 4527e34995SRabin Vincent STMPE_IDX_ICR_LSB, 4627e34995SRabin Vincent STMPE_IDX_IER_LSB, 47897ac667SPatrice Chotard STMPE_IDX_IER_MSB, 48230f13a5SJean-Nicolas Graux STMPE_IDX_ISR_LSB, 4927e34995SRabin Vincent STMPE_IDX_ISR_MSB, 5027e34995SRabin Vincent STMPE_IDX_GPMR_LSB, 51897ac667SPatrice Chotard STMPE_IDX_GPMR_CSB, 52897ac667SPatrice Chotard STMPE_IDX_GPMR_MSB, 5327e34995SRabin Vincent STMPE_IDX_GPSR_LSB, 54897ac667SPatrice Chotard STMPE_IDX_GPSR_CSB, 55897ac667SPatrice Chotard STMPE_IDX_GPSR_MSB, 5627e34995SRabin Vincent STMPE_IDX_GPCR_LSB, 57897ac667SPatrice Chotard STMPE_IDX_GPCR_CSB, 58897ac667SPatrice Chotard STMPE_IDX_GPCR_MSB, 5927e34995SRabin Vincent STMPE_IDX_GPDR_LSB, 60897ac667SPatrice Chotard STMPE_IDX_GPDR_CSB, 61897ac667SPatrice Chotard STMPE_IDX_GPDR_MSB, 62897ac667SPatrice Chotard STMPE_IDX_GPEDR_LSB, 63897ac667SPatrice Chotard STMPE_IDX_GPEDR_CSB, 6427e34995SRabin Vincent STMPE_IDX_GPEDR_MSB, 6527e34995SRabin Vincent STMPE_IDX_GPRER_LSB, 66897ac667SPatrice Chotard STMPE_IDX_GPRER_CSB, 67897ac667SPatrice Chotard STMPE_IDX_GPRER_MSB, 6827e34995SRabin Vincent STMPE_IDX_GPFER_LSB, 69897ac667SPatrice Chotard STMPE_IDX_GPFER_CSB, 70897ac667SPatrice Chotard STMPE_IDX_GPFER_MSB, 7180e1dd82SLinus Walleij STMPE_IDX_GPPUR_LSB, 7280e1dd82SLinus Walleij STMPE_IDX_GPPDR_LSB, 7327e34995SRabin Vincent STMPE_IDX_GPAFR_U_MSB, 7427e34995SRabin Vincent STMPE_IDX_IEGPIOR_LSB, 75897ac667SPatrice Chotard STMPE_IDX_IEGPIOR_CSB, 76897ac667SPatrice Chotard STMPE_IDX_IEGPIOR_MSB, 77230f13a5SJean-Nicolas Graux STMPE_IDX_ISGPIOR_LSB, 78897ac667SPatrice Chotard STMPE_IDX_ISGPIOR_CSB, 7927e34995SRabin Vincent STMPE_IDX_ISGPIOR_MSB, 8027e34995SRabin Vincent STMPE_IDX_MAX, 8127e34995SRabin Vincent }; 8227e34995SRabin Vincent 8327e34995SRabin Vincent 8427e34995SRabin Vincent struct stmpe_variant_info; 851a6e4b74SViresh Kumar struct stmpe_client_info; 86fc1882dcSLinus Walleij struct stmpe_platform_data; 8727e34995SRabin Vincent 8827e34995SRabin Vincent /** 8927e34995SRabin Vincent * struct stmpe - STMPE MFD structure 909c9e3214SLinus Walleij * @vcc: optional VCC regulator 919c9e3214SLinus Walleij * @vio: optional VIO regulator 9227e34995SRabin Vincent * @lock: lock protecting I/O operations 9327e34995SRabin Vincent * @irq_lock: IRQ bus lock 9427e34995SRabin Vincent * @dev: device, mostly for dev_dbg() 9576f93992SLee Jones * @irq_domain: IRQ domain 961a6e4b74SViresh Kumar * @client: client - i2c or spi 971a6e4b74SViresh Kumar * @ci: client specific information 984dcaa6b6SOm Prakash * @partnum: part number 9927e34995SRabin Vincent * @variant: the detected STMPE model number 10027e34995SRabin Vincent * @regs: list of addresses of registers which are at different addresses on 10127e34995SRabin Vincent * different variants. Indexed by one of STMPE_IDX_*. 10273de16dbSViresh Kumar * @irq: irq number for stmpe 10327e34995SRabin Vincent * @num_gpios: number of gpios, differs for variants 10427e34995SRabin Vincent * @ier: cache of IER registers for bus_lock 10527e34995SRabin Vincent * @oldier: cache of IER registers for bus_lock 10627e34995SRabin Vincent * @pdata: platform data 10727e34995SRabin Vincent */ 10827e34995SRabin Vincent struct stmpe { 1099c9e3214SLinus Walleij struct regulator *vcc; 1109c9e3214SLinus Walleij struct regulator *vio; 11127e34995SRabin Vincent struct mutex lock; 11227e34995SRabin Vincent struct mutex irq_lock; 11327e34995SRabin Vincent struct device *dev; 11476f93992SLee Jones struct irq_domain *domain; 1151a6e4b74SViresh Kumar void *client; 1161a6e4b74SViresh Kumar struct stmpe_client_info *ci; 11727e34995SRabin Vincent enum stmpe_partnum partnum; 11827e34995SRabin Vincent struct stmpe_variant_info *variant; 11927e34995SRabin Vincent const u8 *regs; 12027e34995SRabin Vincent 12173de16dbSViresh Kumar int irq; 12227e34995SRabin Vincent int num_gpios; 12327e34995SRabin Vincent u8 ier[2]; 12427e34995SRabin Vincent u8 oldier[2]; 12527e34995SRabin Vincent struct stmpe_platform_data *pdata; 12627e34995SRabin Vincent }; 12727e34995SRabin Vincent 12827e34995SRabin Vincent extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data); 12927e34995SRabin Vincent extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg); 13027e34995SRabin Vincent extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length, 13127e34995SRabin Vincent u8 *values); 13227e34995SRabin Vincent extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length, 13327e34995SRabin Vincent const u8 *values); 13427e34995SRabin Vincent extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val); 13527e34995SRabin Vincent extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins, 13627e34995SRabin Vincent enum stmpe_block block); 13727e34995SRabin Vincent extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks); 13827e34995SRabin Vincent extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks); 13927e34995SRabin Vincent 140b8e9cf0bSWolfram Sang #define STMPE_GPIO_NOREQ_811_TOUCH (0xf0) 141b8e9cf0bSWolfram Sang 14227e34995SRabin Vincent #endif 143